کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6740015 | 504326 | 2016 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Plastic hinge length of shape memory alloy (SMA) reinforced concrete bridge pier
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
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چکیده انگلیسی
It is often assumed that the maximum seismic damage in a bridge pier will concentrate in the regions subjected to maximum inelastic curvature known as its plastic hinge length. Predicting the plastic hinge length accurately is an important part of seismic design of bridge piers. This study focuses on deriving an analytical expression for the plastic hinge length of shape memory alloy (SMA) reinforced concrete (RC) bridge pier based on the results from well calibrated nonlinear finite element models. A parametric study was performed to investigate the effect of different parameters on the plastic hinge length, including axial load ratio, aspect ratio, concrete strength, SMA properties, longitudinal and transverse reinforcement ratio. Multivariate regression analysis was performed to develop an expression to estimate the plastic hinge length in SMA-RC bridge pier. The results are compared with the existing plastic hinge length equations. The proposed equation was validated against test results which showed reasonable accuracy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 117, 15 June 2016, Pages 321-331
Journal: Engineering Structures - Volume 117, 15 June 2016, Pages 321-331
نویسندگان
A.H.M. Muntasir Billah, M. Shahria Alam,